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1475cc, 90", buell, firebolt, nrhs

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  #1  
Old 7th February 2017
Phelan's Avatar
Phelan Phelan is offline
Senior Custom Bike Builder
 
Join Date: Dec 2006
Location: Fountain, CO
Posts: 2,565
Sportster/Buell Model: EBR 1190 SX
Sportster/Buell Year: 2017
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Exclamation XB90R build (90" Firebolt project)

I've been building this Firebolt for a while, for a friend. I've been meaning to make a build log but with the new baby and relocating my Dad, just no time. So consider this the build log of sorts. Still not done, but getting closer. A few embed photos, running vid, and a link to my Imgur album will have to work for now.

when I first got it, right after the original kickstand broke in my driveway


What it looks like now so far




the ugly XB12 header is just installed for dyno tuning since it has 2 extra bungs. I'll install the ceramic header once the bike is tuned.

album link
http://imgur.com/a/VCVyJ

Here's a list of the mods involved

-Bored cases
-08 XB12 crank pro plugged and balanced by Darkhorse
-07 oil pump
-bronze manganese oil pump drive gear
-NRHS CAT4 .590 lift cams modified for XB use
-S&S lifters and cylinder studs
-DK Rocker Lockers (bronze inserts to quiet rocker arm shafts)
-Axtell/NRHS 90" kit with 15* reverse dome pistons
-Smith Bros chromoly pushrods
-883 head cores with 4 new valve seats, porting and other mods by me
-AV&V 1.980" intake, 1.610" exhaust 7mm stem valves, AV&V manganese guides, S&S 650 beehive springs
-XB12 manifold ported and modified by me
-60 lb/hr injectors
-08 XB12 primary gearing
-Energy One clutch pack with Barnett +25% diaphragm spring
-easy clutch leverage extender
-XB12 header and Buell Race Muffler ceramic coated, header interior flow coated
-57 psi fuel regulator, new filter and screen
-1125R forks and trees, top tree modded for risers
-Rox offset risers with Renthal FatBar
-Strada 7 billet levers with carbon fiber inserts
-Strada 7 bar ends
-Lighting clutch cable
-Ulysses throttle cables
-ZTL2 front brake caliper and MC
-billet hidden rear caliper bracket with Brembo P32 2 piston caliper
-Spiegler front and rear brake lines, orange with blue fittings
-powdercoated wheels, dark red-orange (to match the decals) with metal flake
-04 pulleys powdercoated and CNC cut by Free Spirits
-Falcon SPC drive belt
-Free Spirits pulley cover
-Free Spirits belt tensioner
-Braking front and rear rotors
-2010 LED taillight
-Ballistic 12 cell Lithium battery
-American Sport Bike left and right carbon fiber air scoops
-Knight design drop pegs
-billet timing cover
-polished clutch and chain inspection covers
-gloss black powdercoated primary cover

I'm sure I'm forgetting stuff, and there's still more to come.

Timing and fueling still need a lot of work, but I did get it running for some heat cycles.

https://youtu.be/XmQ2Um1Kic8
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  #2  
Old 7th February 2017
MatHormell's Avatar
MatHormell MatHormell is offline
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Sportster/Buell Model: XL883R
Sportster/Buell Year: 2002
Sportster/Buell Model #2: Buell XB12R
Sportster/Buell Year #2: 2009
Other Motorcycle Model: Yamaha
Other Motorcycle Year: 95
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Excited to see the numbers it makes!
do those bars hit the windshield/fairing? and can they still go full lock left and right?
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HAMMER PERFORMANCE 90 Ci
CP .500 Dome Pistons
Axtel Cast Iron Cylinders
HAMMER PERFORMANCE .600 Cams
1.725 Ratio S&S Rocker Arms
HAMMER PERFORMANCE Intake Manifold
HSR 48 Miunki
XR1200 Crank Conversion W/ Case Mod 34T
HAMMER PERFORMANCE Sledge+ Head Work
2.020" Intake and 1.630" Exhaust Valves
Conical Valve Springs
S&S Premium Lifters
HAMMER PERFORMANCE Billet Push Rod Bases
Barnett Clutch Hub With Scorpion Clutch
Dynatek 2000i
R&D MOTORSPORTS- TRANSMISSION WORK-REM ISF
WorldWideBearings
Patriot Defender Exhaust
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Old 7th February 2017
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Phelan Phelan is offline
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Join Date: Dec 2006
Location: Fountain, CO
Posts: 2,565
Sportster/Buell Model: EBR 1190 SX
Sportster/Buell Year: 2017
Reputation: 64602
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Quote:
Originally Posted by MatHormell View Post
Excited to see the numbers it makes!
do those bars hit the windshield/fairing? and can they still go full lock left and right?
In the pics it has Pro Taper risers, and the MC hits the fairing with a few degrees to go still. So we are going to combine the lower portion of the Pro Taper risers with Rox 1.5" offset risers to pull the bar back to get more clearance. Doing it again, we would have welded in a Firebolt ignition mount into a CR top tree to get the lower, more rearward handlebar mounting position. Drilling holes in a milled top tree, the holes have to be about 1" further forward to make room for the tightening nut on the underside of the tree.
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Old 7th February 2017
MatHormell's Avatar
MatHormell MatHormell is offline
Senior Chief Harley Engineer 1st Class
 
Join Date: Jul 2015
Location: Merica!Fock YA!
Posts: 1,342
Sportster/Buell Model: XL883R
Sportster/Buell Year: 2002
Sportster/Buell Model #2: Buell XB12R
Sportster/Buell Year #2: 2009
Other Motorcycle Model: Yamaha
Other Motorcycle Year: 95
Reputation: 1127861
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Right on, yea Im considering something like this but lower on my XB, for some better maneuverability. Most my riding is city, so It would be nice to flick it around a bit quicker
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Old 8th February 2017
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Phelan Phelan is offline
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Join Date: Dec 2006
Location: Fountain, CO
Posts: 2,565
Sportster/Buell Model: EBR 1190 SX
Sportster/Buell Year: 2017
Reputation: 64602
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